Home / 45,431.44-67,806.95-42,442.08

Finding the Fourth Proportional to 45,431.44, 67,806.95 and 42,442.08

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Solution

The fourth proportional to 45,431.44, 67,806.95 and 42,442.08 is: 63,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,431.44 : 67,806.95 = 42,442.08 : x
  2. Step 2: Convert to fraction form
    45,431.44/67,806.95 = 42,442.08/x
  3. Step 3: Cross multiply
    45,431.44x = 67,806.95 × 42,442.08
  4. Step 4: Simplify right side
    45,431.44x = 2,877,868,400.51
  5. Step 5: Solve for x
    x = 2,877,868,400.51/45,431.44
  6. Step 6: Final answer
    x = 63,345.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.